The fungi (singular fungus) are a kingdom of eukaryotic (1) organisms. They are heterotrophic (2) and digest their food externally, absorbing nutrient molecules into their cells. Yeasts, molds, and mushrooms are examples of fungi. The branch of biology involving the study of fungi is known as mycology.
(1) A eukaryote is an organism with a complex cell or cells, in which the genetic material is organized into a membrane-bound nucleus or nuclei.
(2) heterotrophic - Requiring organic compounds of carbon and nitrogen for nourishment
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